US8081596B1 - Method and a network architecture for configuring a radio terminal, radio terminal, network node and a computer program product therefor - Google Patents

Method and a network architecture for configuring a radio terminal, radio terminal, network node and a computer program product therefor Download PDF

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Publication number
US8081596B1
US8081596B1 US11/666,439 US66643904A US8081596B1 US 8081596 B1 US8081596 B1 US 8081596B1 US 66643904 A US66643904 A US 66643904A US 8081596 B1 US8081596 B1 US 8081596B1
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client
ota
radio terminal
message
node
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Enrico Buracchini
Paolo Goria
Alessandro Trogolo
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Telecom Italia SpA
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Telecom Italia SpA
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Assigned to TELECOM ITALIA S.P.A. reassignment TELECOM ITALIA S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BURACCHINI, ENRICO, GORIA, PAOLO, TROGOLO, ALESSANDRO
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal

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  • the present invention relates in general to radio communication networks and to reconfigurable radio terminals using a radio communication network. More particularly, the present invention concerns the configuration of a re-configurable radio terminal, said configuration being carried out by installing in said radio terminal an operating software downloaded over the air (OTA) from the radio communication network.
  • OTA operating software downloaded over the air
  • a reconfigurable radio terminal able to work with a second generation system like GSM/GPRS (Global System for Mobile communication/General Packet Radio Service), can be reconfigured in order to become able to work with a third generation system (3G), like UMTS (Universal Mobile Telecommunication System) or CDMA 2000 (Code Division Multiple Access 2000), or WI-FI (WIreless FIdelity) or DVB-T (Digital Video Broadcasting Terrestrial) systems and so on.
  • 2G second generation system
  • GSM/GPRS Global System for Mobile communication/General Packet Radio Service
  • 3G third generation system
  • UMTS Universal Mobile Telecommunication System
  • CDMA 2000 Code Division Multiple Access 2000
  • WI-FI WIreless FIdelity
  • DVB-T Digital Video Broadcasting Terrestrial
  • system a plurality of elements co-ordinated between them according to predetermined criteria, that is co-ordinated according to a “Standard”, in order to perform a specific function which is, for instance, that of operating as a communication network.
  • operating software it is meant in present description the software, organised in libraries, which defines both the radio interface or lower layers (e.g. L 1 , L 2 , L 3 ) and the upper layers (e.g. L 4 up to L 7 ) of the protocol stack of a considered system, like for instance GSM/GPRS, UMTS and so on.
  • Each layer provides services to the immediately higher layer, said services being in turn improvements of the services provided by the immediately lower layer.
  • the lowest layer (layer 1 ) is generally intended for physically transmitting the information.
  • the downloading protocol steps are the following ones:
  • Applicant notes that known prior art both in case of in band and out of band software download provides for deeply modifying some protocols and some network nodes in order to configure a re-configurable radio terminal.
  • FIG. 1 illustrates an embodiment of the invention implemented in a generic GPRS or UMTS network
  • FIG. 4 a to FIG. 4 k illustrate the structure of the protocol messages exchanged between a mobile radio terminal and the server
  • FIGS. 5 a to 5 j are flow-charts showing in detail the download procedure of an operating software to be installed in a radio mobile terminal
  • FIG. 6 illustrates a sequence diagram of the download procedure showing in particular the opening of the radio connection between a mobile radio terminal and the server.
  • FIG. 1 it is represented an embodiment of the invention implemented in a second (2G) and third (3G) generation system.
  • a Network architecture or architecture comprising a generic GPRS, a generic UMTS network (Network) and a server (OTA server) or node connected to the Network.
  • the software application OTA-Client and the corresponding node OTA-Server exploit, for example, the transport protocol TCP/IP.
  • FIG. 3 it is represented the state diagram of a Client-Context managed by the OTA Server (Server-side).
  • This message is sent from the OTA-Client to the OTA-Server.
  • the terminal requests the Server to begin a download session.
  • each download session is controlled by the OTA-Server.
  • This message is sent from the OTA-Server to the OTA-Client.
  • the Server commands the Client to begin a download session.
  • the fields provided in this case are at least a set of the following ones:
  • This message is sent from the OTA-Server to the OTA-Client.
  • the OTA-Server communicates its credentials to the OTA-Client and requires that the OTA-Client identifies itself.
  • This message is sent from the OTA-Server to the OTA-Client.
  • the OTA-Server/OTA-Client communicates to the OTA-Client/OTA-Server that the OTA-Server has not authenticated the OTA-Client or vice versa.
  • This message is sent from the OTA-Server to the OTA-Client.
  • the OTA-Client requests to the OTA-Server its reconfigurability options.
  • This message is sent from the OTA-Client to the OTA-Server. By this message the OTA-Client confirms the selected download(s).
  • This message is sent from the OTA-Client to the OTA-Server. By this message the OTA-Client renounces to the selected download(s).
  • This message is sent from the OTA-Client to the OTA-Server.
  • the OTA-Client informs the OTA-Server that the testing of the downloaded operating software has not been successful.
  • FIGS. 5 a - 5 j show an example of all the possible procedural interactions.
  • the OTA-Client and the Client-Context relative to the OTA-Client considered and managed by the OTA-Server are in the state IDLE (step 100 ).
  • a radio connection is open (step 104 ) and timer T 100 is started.
  • the radio connection will be illustrated in greater detail later on when describing FIG. 6 .
  • the OTA-Client can begin the software download procedure by sending the protocol message Request Download Initiation to the OTA-Server (step 106 ), the identifier identifying the OTA-Client being indicated in the message.
  • the OTA-Client_ID does not correspond to the identifier of the OTA-Client receiving the protocol message, the message is ignored.
  • the OTA-Server receives the message Request Download Initiation (step 108 ): if the state of the Client_Context is not IDLE (step 110 ), the message is ignored and the procedure stops (step 112 ); otherwise the Client-Context passes from the state IDLE to the state DOWNLOAD INITIATION (step 114 ), starts timer T 101 , and sends to the Client the protocol message Download Request indicating the various possible downloads (step 116 ).
  • the OTA-Client receives the message Download Request (step 118 ): if the state of the OTA-Client is IDLE (step 120 ), the OTA-Client passes from the state IDLE to the state DOWNLOAD INITIATION (step 124 ); otherwise the message is ignored and the procedure stops (step 122 ).
  • the user is then proposed the selection of the available downloads indicated in the message Download Request (step 126 ). If the user selects at least one download (step 128 ), the OTA-Client draws a random number RNUM 1 and stores it (step 142 ), and sends to the OTA-Server the message Download Ack containing in the field OTA-Client_Challenge_Number the value of the drawn number RNUM 1 (step 144 ).
  • the OTA-Client sends to the Client-Context the message Download Reject (step 130 ) and returns to the state IDLE (step 132 ). Then the OTA-Server receives the message Download Reject (step 134 ). If the state of the Client-Context is not DOWNLOAD INITIATION (step 136 ), then the message is ignored and the procedure stops (step 138 ); otherwise the Client-Context returns to the state IDLE (step 140 ).
  • the OTA-Server receives the message Download Ack (step 146 ): if the state of the Client-Context is not DOWNLOAD INITIATION (step 148 ), the message is ignored and the procedure stops (step 150 ); otherwise the Client_Context stops the timer T 101 and passes from the state DOWNLOAD INITIATION to the state MUTUAL AUTHENTICATION (step 152 ), while starting timer T 201 .
  • a random number RNUM 2 is drawn by the OTA-Server and stored (step 154 ).
  • the value of the field OTA-Client_Challenge_Number is encrypted with the OTA-Server internal key by using the selected ciphering algorithm, like for instance AES (step 156 ).
  • the OTA-Server sends to the OTA-Client the protocol message Authentication Request with the value encrypted at the step 156 written in the field OTA-Server_Response_Number and with the value of the number drawn RNUM 2 in the field OTA-Server_Challenge_Number (step 158 ). Then, with reference to FIG.
  • the OTA-Client receives the message Authentication Request (step 160 ) and stops timer T 100 : if the OTA-Client is not in the state DOWNLOAD INITIATION (step 162 ), the message is ignored and the procedure stops (step 164 ); otherwise, the OTA-Client passes from the state DOWNLOAD INITIATION to the state MUTUAL AUTHENTICATION (step 166 ) while starting timer T 200 .
  • the message Authentication Failed is sent by the OTA-Client to the Client-Context (step 170 ) and the OTA-Client passes from the state MUTUAL AUTHENTICATION to the state IDLE (step 172 ) and timer T 200 is stopped. Then the Client-Context receives the message Authentication Failed (step 174 ) and stops the timer T 201 ; if the Client-Context is in the state MUTUAL AUTHENTICATION (step 176 ), the Client-Context passes from the state MUTUAL AUTHENTICATION to the state IDLE (step 180 ); otherwise the procedure stops (step 178 ).
  • step 168 If the stored value RNUM 1 is valid (step 168 ), the value of the stored random number RNUM 1 is encrypted with the OTA-Client internal key by using the selected ciphering algorithm, like for instance AES (step 182 ). If the value encrypted at the step 182 does not match with the value contained in the field OTA-Server_Response_Number (step 184 ), the procedure goes back to step 170 and steps from 170 to 180, already described, are carried out.
  • the selected ciphering algorithm like for instance AES
  • step 184 If the value encrypted at the step 182 matches with the value contained in the field OTA-Server_Response_Number (step 184 ), the value of the field OTA-Server_Challenge_Number is encrypted with the OTA-Client internal key by using the selected ciphering algorithm, like for instance AES (step 186 ). Then the message Authentication Response containing the value encrypted at the step 186 in the field OTA-Client_Response_Number is sent (step 188 ) by the OTA-Client to the Client-Context.
  • the selected ciphering algorithm like for instance AES
  • the message Authentication Failed is sent by the Client-Context to the OTA-Client (step 200 ) and the client-Context passes from the state MUTUAL AUTHENTICATION to the state IDLE (step 202 ). Then the OTA-Client receives the message Authentication Failed (step 204 ): if the OTA-Client is in the state MUTUAL AUTHENTICATION (step 206 ), the OTA-Client passes from the state MUTUAL AUTHENTICATION to the state IDLE (step 210 ); otherwise the procedure stops (step 208 ).
  • the Client-Context stops timer T 201 , passes from the state MUTUAL AUTHENTICATION to the state CAPABILITY REQUEST (step 212 ) and activates timer T 301 .
  • the protocol message Capability Request is sent by the Client-Context to the OTA-Client (step 214 ) and is received by the OTA-Client (step 216 ) which stops timer T 200 : if the state of the OTA-Client is not MUTUAL AUTHENTICATION (step 218 ), the message is ignored and the procedure stops (step 220 ); otherwise the OTA-Client passes from the state MUTUAL AUTHENTICATION to the state CAPABILITY REQUEST (step 222 ) while starting timer T 300 . Then the OTA-Client sends to the Client-Context the message Capability Response (step 224 ) and the Client-Context receives it (step 226 ).
  • the OTA-Client receives the message Download Description (step 240 ) and stops timer T 300 : if the OTA-Client is not in the state CAPABILITY REQUEST (step 242 ), the message is ignored and the procedure stops (step 244 ); otherwise the OTA-Client passes from the state CAPABILITY REQUEST to the state DOWNLOAD ACCEPTANCE (step 246 ).
  • the download options like billing, installation and so on are proposed to the user (step 248 ).
  • step 278 If the software download is not successful (step 278 ), then the OTA-Client/Client-Context sends to the Client-Context/OTA-Client the message Download Failed (step 280 ) and the OTA-Client/Client-Context passes from the state DOWNLOAD SOFTWARE to the state IDLE (step 282 ).
  • the software download (step 276 ) will be explained in more detail later.
  • the OTA-Client receives the message License Response (step 298 ): if the OTA-Client is not in the state INSTALLATION (step 300 ), the message is ignored and the procedure stops (step 302 ); otherwise the OTA-Client decrypts the downloaded software by using the key indicated in the field Decrypt_key (step 304 ). With reference to FIG. 5 h , if the decryption is unsuccessful (step 306 ), the OTA-Client sends the message License Failed to the Client-Context (step 308 ), stops timer T 500 , and passes from the state INSTALLATION to the state IDLE (step 310 ).
  • step 306 the downloaded operating software is stored in the client or terminal (step 320 ).
  • the OTA-Client sends the message License Accept to the CI lent-Context (step 322 ) and the OTA-Server receives it (step 324 ): if the state of the Client-Context is not INSTALLATION (step 326 ), the message is ignored and the procedure stops (step 328 ); otherwise the Client-Context sends the protocol message Test Description to the OTA-Client (step 330 ) and the OTA-Client receives it (step 332 ).
  • the OTA-Client deletes the operating software from the memory (step 344 ), sends the message Installation Failed (step 346 ) to the Client-Context, and passes from the state IN-SITU TESTING to the state IDLE (step 348 ).
  • the Client-Context receives the message Installation Failed (step 350 ): if the state of the Client-Context is not INSTALLATION (step 352 ), the message is ignored and the procedure stops (step 354 ): otherwise the Client-Context passes from the state INSTALLATION to the state IDLE (step 356 ).
  • the OTA-Server receives the message Installation Successful (step 364 ): if the state of the Client-Context is not INSTALLATION (step 366 ), the message is ignored and the procedure stops (step 368 ); otherwise the Client-Context passes from the state INSTALLATION to the state IDLE (step 370 ), thereby completing the whole procedure (step 372 ).
  • each mask bit corresponds to the radio block the number of which is equal to the bit position, that is the first bit corresponds to the first radio block; the second bit to the second radio block and so on (step 404 and step 408 ).
  • the Bitmask_Server is updated according to the content of the Bitmask_Client. More in particular, if a bit of the Bitmask_Client has been set to 1, then the corresponding bit of the Bitmask_Server is set to 1 (step 406 ) as well. When running the download procedure for the first time, this step has no meaning since all bits of the Bitmask_Client and of the Bitmask_Server are set to 0.
  • the management of the software download by means of an application layer may be also carried out with an alternative method where the radio system employed is of the multi-cast or broad-cast type.
  • the solution proposed according to present invention provides for an OTA server external to the system in use and, therefore, it is such that to not modify the system in use.
  • TCP/IP protocol which, as a skilled person knows, is extendedly used in a very large number of systems or networks.

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Information Transfer Between Computers (AREA)
  • Transceivers (AREA)
US11/666,439 2004-10-28 2004-10-28 Method and a network architecture for configuring a radio terminal, radio terminal, network node and a computer program product therefor Active 2026-03-31 US8081596B1 (en)

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KR (1) KR101131520B1 (zh)
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JP4668276B2 (ja) 2004-10-28 2011-04-13 テレコム・イタリア・エッセ・ピー・アー 無線端末を設定するための方法及びネットワークアーキテクチャー並びにそのための無線端末、ネットワークノード及びコンピュータプログラムプロダクト
US8437751B2 (en) 2006-04-25 2013-05-07 Core Wireless Licensing S.A.R.L. Method, apparatus and computer program product for providing confirmed over-the-air terminal configuration
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JP5632315B2 (ja) * 2011-03-17 2014-11-26 株式会社オプティム 端末のリモート操作システム、リモート操作方法
CN102307362B (zh) * 2011-09-06 2015-06-17 北京傲天动联技术股份有限公司 用于实现功能配置的终端设备和控制设备及其网络系统
KR20180014065A (ko) * 2015-05-29 2018-02-07 노키아 테크놀로지스 오와이 5g 무선 액세스 네트워크에서의 플렉시블 무선 프로토콜 지원

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